Adaptor plug



FIG. 1 is a front elevation view of the adaptor plug shown in an openposition;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a perspective view in the open position thereof; and,

FIG. 8 is a perspective view in the closed position thereto.

The ornamental design for an adaptor plug, as shown and described.